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Liu J, Joseph S, Manohar K, Lee J, Brokaw JP, Shelley WC, Markel TA. Role of innate T cells in necrotizing enterocolitis. Front Immunol 2024; 15:1357483. [PMID: 38390341 PMCID: PMC10881895 DOI: 10.3389/fimmu.2024.1357483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 01/16/2024] [Indexed: 02/24/2024] Open
Abstract
Necrotizing enterocolitis (NEC) is a destructive gastrointestinal disease primarily affecting preterm babies. Despite advancements in neonatal care, NEC remains a significant cause of morbidity and mortality in neonatal intensive care units worldwide and the etiology of NEC is still unclear. Risk factors for NEC include prematurity, very low birth weight, feeding with formula, intestinal dysbiosis and bacterial infection. A review of the literature would suggest that supplementation of prebiotics and probiotics prevents NEC by altering the immune responses. Innate T cells, a highly conserved subpopulation of T cells that responds quickly to stimulation, develops differently from conventional T cells in neonates. This review aims to provide a succinct overview of innate T cells in neonates, encompassing their phenotypic characteristics, functional roles, likely involvement in the pathogenesis of NEC, and potential therapeutic implications.
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Affiliation(s)
- Jianyun Liu
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Sharon Joseph
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Krishna Manohar
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Jasmine Lee
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, United States
| | - John P. Brokaw
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, United States
| | - W. Christopher Shelley
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, United States
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN, United States
| | - Troy A. Markel
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, United States
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN, United States
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Manohar K, Mesfin FM, Liu J, Shelley WC, Brokaw JP, Markel TA. Effect of Oral Chondroitin Sulfate Supplementation on Acute Brain Injury in a Murine Necrotizing Enterocolitis Model. J Am Coll Surg 2024; 238:82-98. [PMID: 37870229 DOI: 10.1097/xcs.0000000000000896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
BACKGROUND Necrotizing enterocolitis (NEC) is a devastating condition where inflammatory changes and necrosis in the gut results in activation of brain microglia and subsequent neurodevelopmental impairment. Chondroitin sulfate (CS) is a glycosaminoglycan in human breast milk that is absent in conventional formulas. We hypothesized that oral formula supplementation with CS during a murine model of experimental NEC would not only attenuate intestinal injury, but also brain injury. STUDY DESIGN NEC was induced in mouse pups on postnatal days (PNDs) 5 to 8. Three conditions were studied: (1) breastfed controls, (2) NEC, and (3) NEC+enteral CS (formula+200 mg/kg/d of CS). Pups were euthanized on PND 9 or reunited with dams by the evening of PND 8. Intestinal segments were H&E stained, and immunohistochemistry was performed on brain tissue for Iba-1 to assess for microglial morphology and cortical changes. Neurodevelopmental assays were performed on mice reunited with foster dams on PND 9. Single-cell RNA-sequencing analysis was performed on human intestinal epithelial cells exposed to (1) nothing, (2) hydrogen peroxide (H 2 O 2 ) alone, or (3) H 2 O 2 + CS to look at the differential gene expression between groups. Groups were compared with ANOVA or Kruskal-Wallis tests as appropriate with p < 0.05 considered significant. RESULTS Compared with NEC, mice treated with oral CS showed improved clinical outcomes, decreased intestinal injury, and attenuated microglial activation and deleterious cortical change. Mice with CS performed better on early neurodevelopmental assays when compared with NEC alone. Single-cell analysis of HIEC-6 cells demonstrated that CS treatment down regulated several inflammatory pathways including nuclear factor κB-suggesting an explanation for the improved Th17 intestinal cytokine profile. CONCLUSIONS Oral CS supplementation improved both physiological, clinical, and developmental outcomes. These data suggest that CS is a safe compound for formula supplementation for the prevention of NEC.
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Affiliation(s)
- Krishna Manohar
- From the Department of Surgery, Indiana University School of Medicine, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
| | - Fikir M Mesfin
- From the Department of Surgery, Indiana University School of Medicine, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
| | - Jianyun Liu
- From the Department of Surgery, Indiana University School of Medicine, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
| | - W Christopher Shelley
- From the Department of Surgery, Indiana University School of Medicine, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
| | - John P Brokaw
- From the Department of Surgery, Indiana University School of Medicine, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
| | - Troy A Markel
- From the Department of Surgery, Indiana University School of Medicine, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
- Riley Hospital for Children at Indiana University Health, Indianapolis, IN (Manohar, Mesfin, Liu, Shelley, Brokaw, Markel)
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Hunter CE, Mesfin FM, Manohar K, Liu J, Shelley WC, Brokaw JP, Pecoraro AR, Hosfield BD, Markel TA. Hydrogen Sulfide Improves Outcomes in a Murine Model of Necrotizing Enterocolitis via the Cys440 Residue on Endothelial Nitric Oxide Synthase. J Pediatr Surg 2023; 58:2391-2398. [PMID: 37684170 PMCID: PMC10841167 DOI: 10.1016/j.jpedsurg.2023.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/31/2023] [Accepted: 08/13/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Hydrogen sulfide (H2S) has been shown to improve outcomes in a murine model of necrotizing enterocolitis (NEC). There is evidence in humans that H2S relies on endothelial nitric oxide synthase (eNOS) to exert its protective effects, potentially through the persulfidation of eNOS at the Cysteine 443 residue. We obtained a novel mouse strain with a mutation at this residue (eNOSC440G) and hypothesized that this locus would be critical for GYY4137 (an H2S donor) to exert its protective effects. METHODS Necrotizing enterocolitis was induced in 5-day old wild type (WT) and eNOSC440G mice using intermittent exposure to hypoxia and hypothermia in addition to gavage formula feeds. On postnatal day 9, mice were humanely euthanized. Data collected included daily weights, clinical sickness scores, histologic lung injury, intestinal injury (macroscopically and histologically), and intestinal perfusion. During the NEC model, pups received daily intraperitoneal injections of either GYY4137 (50 mg/kg) or PBS (vehicle). Data were tested for normality and compared using t-test or Mann-Whitney, and a p-value <0.05 was considered significant. RESULTS In WT mice, the administration of GYY4137 significantly improved clinical sickness scores, attenuated intestinal and lung injury, and improved mesenteric perfusion compared to vehicle (p < 0.05). In eNOSC440G mice, the treatment and vehicle groups had similar clinical sickness scores, intestinal and lung injury scores, and intestinal perfusion. CONCLUSIONS GYY4137 administration improves clinical outcomes, attenuates intestinal and lung injury, and improves perfusion in a murine model of necrotizing enterocolitis. The beneficial effects of GYY4137 are dependent on the Cys440 residue of eNOS.
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Affiliation(s)
- Chelsea E Hunter
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Fikir M Mesfin
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Krishna Manohar
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jianyun Liu
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | | | - John P Brokaw
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Anthony R Pecoraro
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Brian D Hosfield
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Troy A Markel
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA; Riley Hospital for Children at Indiana University Health, Indianapolis, IN, USA.
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Manohar K, Hosfield BD, Mesfin FM, Colgate C, Shelley WC, Liu J, Zeng L, Brokaw JP, Markel TA. Chondroitin sulfate supplementation improves clinical outcomes in a murine model of necrotizing enterocolitis. Physiol Rep 2023; 11:e15819. [PMID: 37697223 PMCID: PMC10495347 DOI: 10.14814/phy2.15819] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 09/13/2023] Open
Abstract
Necrotizing enterocolitis (NEC) continues to be a devastating disease in preterm neonates and has a paucity of medical management options. Chondroitin sulfate (CS) is a naturally occurring glycosaminoglycan (GAG) in human breast milk (HM) and has been shown to reduce inflammation. We hypothesized that supplementation with CS in an experimental NEC model would alter microbial diversity, favorably alter the cytokine profile, and (like other sulfur compounds) improve outcomes in experimental NEC via the eNOS pathway. NEC was induced in 5-day-old pups. Six groups were studied (n = 9-15/group): (1) WT breastfed and (2) Formula fed controls, (3) WT NEC, (4) WT NEC + CS, (5) eNOS KO (knockout) NEC, and (6) eNOS KO NEC + CS. Pups were monitored for clinical sickness score and weights. On postnatal day 9, the pups were killed. Stool was collected from rectum and microbiome analysis was done with 16 s rRNA sequencing. Intestinal segments were examined histologically using a well-established injury scoring system and segments were homogenized and analyzed for cytokine profile. Data were analyzed using GraphPad Prism with p < 0.05 considered significant. CS supplementation in formula improved experimental NEC outcomes when compared to NEC alone. CS supplementation resulted in similar improvement in NEC in both the WT and eNOS KO mice. CS supplementation did not result in microbial changes when compared to NEC alone. Our data suggest that although CS supplementation improved outcomes in NEC, this protection is not conferred via the eNOS pathway or alteration of microbial diversity. CS therapy in NEC does improve the intestinal cytokine profile and further experiments will explore the mechanistic role of CS in altering immune pathways in this disease.
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Affiliation(s)
- Krishna Manohar
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
| | - Brian D. Hosfield
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
| | - Fikir M. Mesfin
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
| | - Cameron Colgate
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
| | - William Christopher Shelley
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
| | - Jianyun Liu
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
| | - Lifan Zeng
- Department of Biochemistry and Molecular BiologyIUSMIndianapolisIndianaUSA
| | - John P. Brokaw
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
| | - Troy A. Markel
- Department of SurgeryIndiana University School of Medicine (IUSM)IndianapolisIndianaUSA
- Riley Hospital for Children at Indiana University HealthIndianapolisIndianaUSA
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Dalis C, Mesfin FM, Manohar K, Liu J, Shelley WC, Brokaw JP, Markel TA. Volatile Organic Compound Assessment as a Screening Tool for Early Detection of Gastrointestinal Diseases. Microorganisms 2023; 11:1822. [PMID: 37512994 PMCID: PMC10385474 DOI: 10.3390/microorganisms11071822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Gastrointestinal (GI) diseases have a high prevalence throughout the United States. Screening and diagnostic modalities are often expensive and invasive, and therefore, people do not utilize them effectively. Lack of proper screening and diagnostic assessment may lead to delays in diagnosis, more advanced disease at the time of diagnosis, and higher morbidity and mortality rates. Research on the intestinal microbiome has demonstrated that dysbiosis, or unfavorable alteration of organismal composition, precedes the onset of clinical symptoms for various GI diseases. GI disease diagnostic research has led to a shift towards non-invasive methods for GI screening, including chemical-detection tests that measure changes in volatile organic compounds (VOCs), which are the byproducts of bacterial metabolism that result in the distinct smell of stool. Many of these tools are expensive, immobile benchtop instruments that require highly trained individuals to interpret the results. These attributes make them difficult to implement in clinical settings. Alternatively, electronic noses (E-noses) are relatively cheaper, handheld devices that utilize multi-sensor arrays and pattern recognition technology to analyze VOCs. The purpose of this review is to (1) highlight how dysbiosis impacts intestinal diseases and how VOC metabolites can be utilized to detect alterations in the microbiome, (2) summarize the available VOC analytical platforms that can be used to detect aberrancies in intestinal health, (3) define the current technological advancements and limitations of E-nose technology, and finally, (4) review the literature surrounding several intestinal diseases in which headspace VOCs can be used to detect or predict disease.
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Affiliation(s)
- Costa Dalis
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Fikir M Mesfin
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Krishna Manohar
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jianyun Liu
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - W Christopher Shelley
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - John P Brokaw
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Troy A Markel
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Kukshal P, Joshi RO, Kumar A, Ahamad S, Murthy PR, Sathe Y, Manohar K, Guhathakurta S, Chellappan S. Case-control association study of congenital heart disease from a tertiary paediatric cardiac centre from North India. BMC Pediatr 2023; 23:290. [PMID: 37322441 PMCID: PMC10268439 DOI: 10.1186/s12887-023-04095-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 05/27/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Congenital Heart diseases (CHDs) account for 1/3rd of all congenital birth defects. Etiopathogenesis of CHDs remain elusive despite extensive investigations globally. Phenotypic heterogeneity witnessed in this developmental disorder reiterate gene-environment interactions with periconceptional factors as risk conferring; and genetic analysis of both sporadic and familial forms of CHD suggest its multigenic basis. Significant association of de novo and inherited variants have been observed. Approximately 1/5th of CHDs are documented in the ethnically distinct Indian population but genetic insights have been very limited. This pilot case-control based association study was undertaken to investigate the status of Caucasian SNPs in a north Indian cohort. METHOD A total of 306 CHD cases sub-classified into n = 198 acyanotic and n = 108 cyanotic types were recruited from a dedicated tertiary paediatric cardiac centre in Palwal, Haryana. 23 SNPs primarily prioritized from Genome-wide association studies (GWAS) on Caucasians were genotyped using Agena MassARRAY Technology and test of association was performed with adequately numbered controls. RESULTS Fifty percent of the studied SNPs were substantially associated in either allelic, genotypic or sub-phenotype categories validating their strong correlation with disease manifestation. Of note, strongest allelic association was observed for rs73118372 in CRELD1 (p < 0.0001) on Chr3, rs28711516 in MYH6 (p = 0.00083) and rs735712 in MYH7 (p = 0.0009) both on Chr 14 and were also significantly associated with acyanotic, and cyanotic categories separately. rs28711516 (p = 0.003) and rs735712 (p = 0.002) also showed genotypic association. Strongest association was observed with rs735712(p = 0.003) in VSD and maximum association was observed for ASD sub-phenotypes. CONCLUSIONS Caucasian findings were partly replicated in the north Indian population. The findings suggest the contribution of genetic, environmental and sociodemographic factors, warranting continued investigations in this study population.
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Affiliation(s)
- Prachi Kukshal
- Sri Sathya Sai Sanjeevani Research Foundation, NH-2, Delhi-Mathura Highway, Baghola, Haryana, District Palwal, Pin- 121102, India.
| | - Radha O Joshi
- Present address Sri Sathya Sai Sanjeevani Research Foundation, Kharghar, Navi Mumbai- 410210, Maharashtra, India
| | - Ajay Kumar
- Sri Sathya Sai Sanjeevani Research Foundation, NH-2, Delhi-Mathura Highway, Baghola, Haryana, District Palwal, Pin- 121102, India
| | - Shadab Ahamad
- Sri Sathya Sai Sanjeevani Research Foundation, NH-2, Delhi-Mathura Highway, Baghola, Haryana, District Palwal, Pin- 121102, India
| | - Prabhatha Rashmi Murthy
- Sri Sathya Sai Sanjeevani Centre for Child Heart Care and Training in Paediatric Cardiac Skills, Navi Mumbai Maharashtra, India
| | - Yogesh Sathe
- Sri Sathya Sai Sanjeevani International Centre for Child Heart Care & Research, NH-2, Delhi-Mathura Highway, Baghola, District Palwal, Haryana, Pin 121102, India
| | - Krishna Manohar
- Sri Sathya Sai Sanjeevani International Centre for Child Heart Care & Research, NH-2, Delhi-Mathura Highway, Baghola, District Palwal, Haryana, Pin 121102, India
| | - Soma Guhathakurta
- Sri Sathya Sai Sanjeevani Research Foundation, NH-2, Delhi-Mathura Highway, Baghola, Haryana, District Palwal, Pin- 121102, India
| | - Subramanian Chellappan
- Sri Sathya Sai Sanjeevani International Centre for Child Heart Care & Research, NH-2, Delhi-Mathura Highway, Baghola, District Palwal, Haryana, Pin 121102, India.
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Mesfin FM, Manohar K, Shelley WC, Brokaw JP, Liu J, Ma M, Markel TA. Stem cells as a therapeutic avenue for active and long-term complications of Necrotizing Enterocolitis. Semin Pediatr Surg 2023; 32:151311. [PMID: 37276782 DOI: 10.1016/j.sempedsurg.2023.151311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Necrotizing enterocolitis (NEC) is a devastating neonatal intestinal disease associated with significant morbidity and mortality. Although decades of research have been dedicated to understanding the pathogenesis of NEC and developing therapies, it remains the leading cause of death among neonatal gastrointestinal diseases. Mesenchymal stem cells (MSCs) have garnered significant interest recently as potential therapeutic agents for the treatment of NEC. They have been shown to rescue intestinal injury and reduce the incidence and severity of NEC in various preclinical animal studies. MSCs and MSC-derived organoids and tissue engineered small intestine (TESI) have shown potential for the treatment of long-term sequela of NEC such as short bowel syndrome, neurodevelopmental delay, and chronic lung disease. Although the advances made in the use of MSCs are promising, further research is needed prior to the widespread use of these cells for the treatment of NEC.
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Affiliation(s)
- Fikir M Mesfin
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Krishna Manohar
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - W Christopher Shelley
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - John P Brokaw
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jianyun Liu
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - Troy A Markel
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA; Riley Hospital for Children at Indiana University Health, Indianapolis, IN, USA.
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Mesfin FM, Manohar K, Hunter CE, Shelley WC, Brokaw JP, Liu J, Ma M, Markel TA. Stem cell derived therapies to preserve and repair the developing intestine. Semin Perinatol 2023; 47:151727. [PMID: 36964032 PMCID: PMC10133028 DOI: 10.1016/j.semperi.2023.151727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Abstract
Stem cell research and the use of stem cells in therapy have seen tremendous growth in the last two decades. Neonatal intestinal disorders such as necrotizing enterocolitis, Hirschsprung disease, and gastroschisis have high morbidity and mortality and limited treatment options with varying success rates. Stem cells have been used in several pre-clinical studies to address various neonatal disorders with promising results. Stem cell and patient population selection, timing of therapy, as well as safety and quality control are some of the challenges that must be addressed prior to the widespread clinical application of stem cells. Further research and technological advances such as the use of cell delivery technology can address these challenges and allow for continued progress towards clinical translation.
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Affiliation(s)
- Fikir M Mesfin
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Krishna Manohar
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Chelsea E Hunter
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - W Christopher Shelley
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - John P Brokaw
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Jianyun Liu
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY
| | - Troy A Markel
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN; Riley Hospital for Children at Indiana University Health, Indianapolis, IN.
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Manohar K, Mesfin FM, Liu J, Shelley WC, Brokaw JP, Markel TA. Gut-Brain cross talk: The pathogenesis of neurodevelopmental impairment in necrotizing enterocolitis. Front Pediatr 2023; 11:1104682. [PMID: 36873645 PMCID: PMC9975605 DOI: 10.3389/fped.2023.1104682] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/23/2023] [Indexed: 02/17/2023] Open
Abstract
Necrotizing enterocolitis (NEC) is a devastating condition of multi-factorial origin that affects the intestine of premature infants and results in high morbidity and mortality. Infants that survive contend with several long-term sequelae including neurodevelopmental impairment (NDI)-which encompasses cognitive and psychosocial deficits as well as motor, vision, and hearing impairment. Alterations in the gut-brain axis (GBA) homeostasis have been implicated in the pathogenesis of NEC and the development of NDI. The crosstalk along the GBA suggests that microbial dysbiosis and subsequent bowel injury can initiate systemic inflammation which is followed by pathogenic signaling cascades with multiple pathways that ultimately lead to the brain. These signals reach the brain and activate an inflammatory cascade in the brain resulting in white matter injury, impaired myelination, delayed head growth, and eventual downstream NDI. The purpose of this review is to summarize the NDI seen in NEC, discuss what is known about the GBA, explore the relationship between the GBA and perinatal brain injury in the setting of NEC, and finally, highlight the existing research into possible therapies to help prevent these deleterious outcomes.
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Affiliation(s)
- Krishna Manohar
- Department of Surgery, Indiana University School of Medicine (IUSM), Indianapolis, IN, United States
| | - Fikir M Mesfin
- Department of Surgery, Indiana University School of Medicine (IUSM), Indianapolis, IN, United States
| | - Jianyun Liu
- Department of Surgery, Indiana University School of Medicine (IUSM), Indianapolis, IN, United States
| | - W Christopher Shelley
- Department of Surgery, Indiana University School of Medicine (IUSM), Indianapolis, IN, United States
| | - John P Brokaw
- Department of Surgery, Indiana University School of Medicine (IUSM), Indianapolis, IN, United States
| | - Troy A Markel
- Department of Surgery, Indiana University School of Medicine (IUSM), Indianapolis, IN, United States.,Riley Hospital for Children, Indiana University Health, Indianapolis, IN, United States
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Hosfield BD, Shelley WC, Mesfin FM, Brokaw JP, Manohar K, Liu J, Li H, Pecoraro AR, Singh K, Markel TA. Age disparities in intestinal stem cell quantities: a possible explanation for preterm infant susceptibility to necrotizing enterocolitis. Pediatr Surg Int 2022; 38:1971-1979. [PMID: 36208323 DOI: 10.1007/s00383-022-05257-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/29/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE Preterm infants are more susceptible to necrotizing enterocolitis (NEC) than term Queryinfants. This may be due to a relative paucity of Lgr5+ or Bmi1+-expressing intestinal stem cells (ISCs) which are responsible for promoting intestinal recovery after injury. We hypothesized that the cellular markers of Lgr5+ and Bmi1+, which represent the two distinct ISC populations, would be lower in younger mice compared to older mice. In addition, we hypothesized that experimental NEC would result in a greater loss of Lgr5+ expression compared to Bmi1+ expression. METHODS Transgenic mice with EGFP-labeled Lgr5 underwent euthanasia at 10 different time points from E15 to P56 (n = 8-11/group). Lgr5+-expressing ISCs were quantified by GFP ELISA and Bmi1+ was assessed by qPCR. In addition, Lgr5EGFP mice underwent experimental NEC via formula feeding and hypoxic and hypothermic stress. Additional portions of the intestine underwent immunostaining with anti-GFP or anti-Bmi1+ antibodies to confirm ELISA and PCR results. For statistical analysis, p < 0.05 was significant. RESULTS Lgr5+ and Bmi1+expression was lowest in embryonal and early postnatal mice and increased with age in all segments of the intestine. Experimental NEC was associated with loss of Lgr5+-expressing ISCs but no significant change in Bmi1+ expression. CONCLUSION Lgr5+ and Bmi1+ expression increase with age. Lgr5+-expressing ISCs are lower following experimental necrotizing enterocolitis while Bmi1+ expression remains relatively unchanged. Developing a targeted medical therapy to protect the low population of ISCs in preterm infants may promote tissue recovery and regeneration after injury from NEC.
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Affiliation(s)
- Brian D Hosfield
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - W Christopher Shelley
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Fikir M Mesfin
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - John P Brokaw
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Krishna Manohar
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jianyun Liu
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Hongge Li
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Anthony R Pecoraro
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kanhaiya Singh
- Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Troy A Markel
- Department of Surgery, Section of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, IN, USA. .,Riley Hospital for Children at Indiana University Health, 705 Riley Hospital Dr., RI 2500, Indianapolis, IN, USA.
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11
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Hosfield BD, Hunter CE, Li H, Drucker NA, Pecoraro AR, Manohar K, Shelley WC, Markel TA. A hydrogen-sulfide derivative of mesalamine reduces the severity of intestinal and lung injury in necrotizing enterocolitis through endothelial nitric oxide synthase. Am J Physiol Regul Integr Comp Physiol 2022; 323:R422-R431. [PMID: 35912999 PMCID: PMC9512109 DOI: 10.1152/ajpregu.00229.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 06/18/2022] [Accepted: 07/19/2022] [Indexed: 11/22/2022]
Abstract
Necrotizing enterocolitis (NEC) remains a devastating disease that affects preterm infants. Hydrogen sulfide (H2S) donors have been shown to reduce the severity of NEC, but the optimal compound has yet to be identified. We hypothesized that oral H2S-Mesalamine (ATB-429) would improve outcomes in experimental NEC, and its benefits would be dependent on endothelial nitric oxide synthase (eNOS) pathways. NEC was induced in 5-day-old wild-type (WT) and eNOS knockout (eNOSKO) pups by formula feeding and stress. Four groups were studied in both WT and eNOSKO mice: 1) breastfed controls, 2) NEC, 3) NEC + 50 mg/kg mesalamine, and 4) NEC + 130 mg/kg ATB-429. Mesalamine and ATB-429 doses were equimolar. Pups were monitored for sickness scores and perfusion to the gut was measured by Laser Doppler Imaging (LDI). After euthanasia of the pups, intestine and lung were hematoxylin and eosin-stained and scored for injury in a blind fashion. TLR4 expression was quantified by Western blot and IL-6 expression by ELISA. P < 0.05 was significant. Both WT and eNOSKO breastfed controls underwent normal development and demonstrated milder intestinal and pulmonary injury compared with NEC groups. For the WT groups, ATB-429 significantly improved weight gain, reduced clinical sickness score, and improved perfusion compared with the NEC group. In addition, WT ATB-429 pups had a significantly milder intestinal and pulmonary histologic injury when compared with NEC. ATB-429 attenuated the increase in TLR4 and IL-6 expression in the intestine. When the experiment was repeated in eNOSKO pups, ATB-429 offered no benefit in weight gain, sickness scores, perfusion, intestinal injury, pulmonary injury, or decreasing intestinal inflammatory markers. An H2S derivative of mesalamine improves outcomes in experimental NEC. Protective effects appear to be mediated through eNOS. Further research is warranted to explore whether ATB-429 may be an effective oral therapy to combat NEC.
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Affiliation(s)
- Brian D Hosfield
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Chelsea E Hunter
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Hongge Li
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Natalie A Drucker
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Anthony R Pecoraro
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Krishna Manohar
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | | | - Troy A Markel
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
- Riley Hospital for Children, Indiana University Health, Indianapolis, Indiana
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Chellappan S, Manohar K, Sathe Y, James A, Joshi R, Hamza A. Pseudoaneurysm following a neonatal coarctation repair; a dreadful complication. Asian Cardiovasc Thorac Ann 2021; 30:715-721. [PMID: 34524927 DOI: 10.1177/02184923211042414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aneurysms of descending thoracic aorta following surgical repair of coarctation have been reported in literature. Almost always, they are seen in repairs involving prosthetic patch aortoplasty. We report a neonate who underwent resection and an extended end to end anastomosis repair of coarctation and subsequently developed a huge pseudoaneurysm at a 3-month follow-up. He underwent a repair of the same through a sternotomy approach under hypothermic low flow cardiopulmonary bypass. An autologous pericardial patch aortoplasty was done successfully.
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Affiliation(s)
- Subramanian Chellappan
- Department of Paediatric Cardiac Anaesthesia, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, India
| | - Krishna Manohar
- Department of Paediatric Cardiac Surgery, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, India
| | - Yogesh Sathe
- Department of Paediatric Cardiology, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, India
| | - Arya James
- Department of Paediatric Cardiac Anaesthesia, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, India
| | - Radha Joshi
- Department of Genomics Research, Sri Sathya Sai Sanjeevani Research Foundation, India
| | - Ameer Hamza
- Department of Paediatric Cardiac Intensive Care, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, India
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Chellappan S, Manohar K, Sathe Y, Pandey R, Joshi R, Deshpande A. Acyanotic Truncus Arteriosus: Not a Misnomer But a True Rarity. World J Pediatr Congenit Heart Surg 2021; 13:104-106. [PMID: 33956545 DOI: 10.1177/21501351211000367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Truncus arteriosus, also referred to as common arterial trunk (CAT), is generally classified as a cyanotic congenital heart disease characterized by a single arterial trunk arising from the heart and supplying both pulmonary and systemic circulations. Cyanosis exists by virtue of it being an admixture lesion. We report a 13-year-old boy diagnosed to have type 1 CAT who was acyanotic at presentation and had all features of an operable lesion even at this age. He underwent a successful repair with closure of the subtruncal VSD and insertion of a hand-sewn valved right ventricle-to-pulmonary artery conduit made of bovine pericardium and Gore-Tex membrane.
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Affiliation(s)
- Subramanian Chellappan
- Department of Paediatric Cardiac Anaesthesia, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
| | - Krishna Manohar
- Department of Paediatric Cardiac Surgery, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
| | - Yogesh Sathe
- Department of Paediatric Cardiology, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
| | - Rakesh Pandey
- Department of Paediatric Cardiac Anaesthesia, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
| | - Radha Joshi
- Department of Genomics Research, Sri Sathya Sai Sanjeevani Research Foundation, Palwal, Haryana, India
| | - Akshay Deshpande
- Department of Paediatric Cardiac Intensive Care, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
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14
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Chellappan S, Manohar K, Sathe Y, Amboli S, Joshi R, Hiremath N. Isolated left subclavian with a compensatory ductus in a child with Tetralogy of Fallot. Asian Cardiovasc Thorac Ann 2021; 29:810-812. [PMID: 33611950 DOI: 10.1177/0218492321997385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Tetralogy of Fallot is a cyanotic heart disease wherein aortopulmonary collaterals serve as source of pulmonary blood flow to maintain oxygenation. We report an incidentally detected isolated left subclavian artery supplying a compensatory ductus in a child with Tetralogy of Fallot that effectively contributed as a de novo palliative systemic to pulmonary artery shunt. Clinically, the entity could not be suspected, as the child did not have symptoms suggestive of arterial insufficiency of the left arm or weak pulses or neurological symptoms. The child underwent successful intracardiac repair with a reimplantation of left subclavian artery to left common carotid artery.
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Affiliation(s)
- Subramanian Chellappan
- Department of Paediatric Cardiac Anaesthesia, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, India
| | - Krishna Manohar
- Department of Paediatric Cardiac Surgery, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, India
| | - Yogesh Sathe
- Department of Paediatric Cardiology, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, India
| | - Siddharth Amboli
- Department of Paediatric Cardiac Surgery, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, India
| | - Radha Joshi
- Department of Genomics Research, Sri Sathya Sai Sanjeevani Research Foundation, Palwal, India
| | - Naveen Hiremath
- Department of Paediatric Cardiac Intensive Care, Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, India
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Senghor A, Manohar K, Vinodhini VM, Kapoor P. Albumin and urine albumin–Creatinine ratio as acute kidney injury predictors in patients undergoing cardiac surgery. J Nat Sci Biol Med 2021. [DOI: 10.4103/jnsbm.jnsbm_51_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Yuan T, Manohar K, Latorre R, Orock A, Greenwood-Van Meerveld B. Inhibition of Microglial Activation in the Amygdala Reverses Stress-Induced Abdominal Pain in the Male Rat. Cell Mol Gastroenterol Hepatol 2020; 10:527-543. [PMID: 32408032 PMCID: PMC7394753 DOI: 10.1016/j.jcmgh.2020.04.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Psychological stress is a trigger for the development of irritable bowel syndrome and associated symptoms including abdominal pain. Although irritable bowel syndrome patients show increased activation in the limbic brain, including the amygdala, the underlying molecular and cellular mechanisms regulating visceral nociception in the central nervous system are incompletely understood. In a rodent model of chronic stress, we explored the role of microglia in the central nucleus of the amygdala (CeA) in controlling visceral sensitivity. Microglia are activated by environmental challenges such as stress, and are able to modify neuronal activity via synaptic remodeling and inflammatory cytokine release. Inflammatory gene expression and microglial activity are regulated negatively by nuclear glucocorticoid receptors (GR), which are suppressed by the stress-activated pain mediator p38 mitogen-activated protein kinases (MAPK). METHODS Fisher-344 male rats were exposed to water avoidance stress (WAS) for 1 hour per day for 7 days. Microglia morphology and the expression of phospho-p38 MAPK and GR were analyzed via immunofluorescence. Microglia-mediated synaptic remodeling was investigated by quantifying the number of postsynaptic density protein 95-positive puncta. Cytokine expression levels in the CeA were assessed via quantitative polymerase chain reaction and a Luminex assay (Bio-Rad, Hercules, CA). Stereotaxic infusion into the CeA of minocycline to inhibit, or fractalkine to activate, microglia was followed by colonic sensitivity measurement via a visceromotor behavioral response to isobaric graded pressures of tonic colorectal distension. RESULTS WAS induced microglial deramification in the CeA. Moreover, WAS induced a 3-fold increase in the expression of phospho-p38 and decreased the ratio of nuclear GR in the microglia. The number of microglia-engulfed postsynaptic density protein 95-positive puncta in the CeA was increased 3-fold by WAS, while cytokine levels were unchanged. WAS-induced changes in microglial morphology, microglia-mediated synaptic engulfment in the CeA, and visceral hypersensitivity were reversed by minocycline whereas in stress-naïve rats, fractalkine induced microglial deramification and visceral hypersensitivity. CONCLUSIONS Our data show that chronic stress induces visceral hypersensitivity in male rats and is associated with microglial p38 MAPK activation, GR dysfunction, and neuronal remodeling in the CeA.
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Affiliation(s)
- Tian Yuan
- Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Krishna Manohar
- Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Rocco Latorre
- Department of Basic Science and Craniofacial Biology, New York University, New York City, New York
| | - Albert Orock
- Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Beverley Greenwood-Van Meerveld
- Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Oklahoma City VA Health Care System, Oklahoma City, Oklahoma,Correspondence Address correspondence to: Beverley Greenwood-Van Meerveld, PhD, O’Donoghue Building, Room 332, 1122 NE 13th Street, Oklahoma City, Oklahoma 73117.
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17
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Saxena A, Relan J, Agarwal R, Awasthy N, Azad S, Chakrabarty M, Dagar KS, Devagourou V, Dharan BS, Gupta SK, Iyer KS, Jayranganath M, Joshi R, Kannan BRJ, Katewa A, Kohli V, Koneti NR, Kothari SS, Krishnamoorthy KM, Kulkarni S, Kumar RM, Kumar RK, Maheshwari S, Manohar K, Marwah A, Mishra S, Mohanty SR, Murthy KS, Suresh PV, Radhakrishnan S, Rajashekar P, Ramakrishnan S, Rao N, Rao SG, Reddy CH, Sharma R, Shivaprakasha K, Subramanyan R, Kumar RS, Talwar S, Tomar M, Verma S, Raju V. Indian Guidelines for Indications and Timing of Intervention for Common Congenital Heart Diseases: Revised and Updated Consensus Statement of the Working Group on Management of Congenital Heart Diseases. Abridged Secondary Publication. Indian Pediatr 2020; 57:143-157. [PMID: 32060242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
JUSTIFICATION A number of guidelines are available for management of congenital heart diseases from infancy to adult life. However, these guidelines are for patients living in high income countries. Separate guidelines, applicable to Indian children, are required when recommending an intervention for congenital heart diseases, as often these patients present late in the course of the disease and may have co-existing morbidities and malnutrition. PROCESS Guidelines emerged following expert deliberations at the National Consensus Meeting on Management of Congenital Heart Diseases in India, held on 10th and 11th of August 2018 at the All India Institute of Medical Sciences, New Delhi. The meeting was supported by Children's HeartLink, a non-governmental organization based in Minnesota, USA. OBJECTIVES To frame evidence based guidelines for (i) indications and optimal timing of intervention in common congenital heart diseases; (ii) follow-up protocols for patients who have undergone cardiac surgery/catheter interventions for congenital heart diseases. RECOMMENDATIONS Evidence based recommendations are provided for indications and timing of intervention in common congenital heart diseases, including left-to-right shunts (atrial septal defect, ventricular septal defect, atrioventricular septal defect, patent ductus arteriosus and others), obstructive lesions (pulmonary stenosis, aortic stenosis and coarctation of aorta) and cyanotic congenital heart diseases (tetralogy of Fallot, transposition of great arteries, univentricular hearts, total anomalous pulmonary venous connection, Ebstein anomaly and others). In addition, protocols for follow-up of post surgical patients are also described, disease wise.
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Affiliation(s)
- Anita Saxena
- All India Institute of Medical Sciences, New Delhi, India. Correspondence to: Dr Anita Saxena, DM (Cardiology), Professor, Department of Cardiology, All India Institute of Medical Sciences, New Delhi 110 029, India.
| | - Jay Relan
- All India Institute of Medical Sciences, New Delhi, India
| | | | | | - Sushil Azad
- Fortis Escorts Heart Institute, New Delhi, India
| | | | | | | | - Baiju S Dharan
- Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | | | | | - M Jayranganath
- Jayadeva Institute of Cardiovascular Sciences and Research, Bangalore, Karnataka, India
| | - Raja Joshi
- Sir Ganga Ram Hospital, New Delhi, India
| | - B R J Kannan
- Vadamalayan Hospitals, Madurai, Tamil Nadu, India
| | - Ashish Katewa
- Sri Sathya Sai Sanjeevani Hospital, Raipur, Chhattisgarh, India
| | | | | | | | - K M Krishnamoorthy
- Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - Snehal Kulkarni
- Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | - Rohit Manoj Kumar
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | | | - Krishna Manohar
- Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
| | | | | | | | | | - P V Suresh
- Narayana Hrudayalaya, Bangalore, Karnataka, India
| | | | | | | | - Nitin Rao
- Star Hospital, Hyderabad, Telangana, India
| | - Suresh G Rao
- Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | | | | | | | | | - R Suresh Kumar
- Believers International Heart Centre, Thiruvalla, Kerala, India
| | - Sachin Talwar
- All India Institute of Medical Sciences, New Delhi, India
| | | | - Sudeep Verma
- Krishna Institute of Medical Sciences, Secunderabad, Telangana, India
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Diwakar A, Chalam KS, Hiremath CS, Manohar K, Dash PK. Aorto-left ventricular tunnel - A case report. Ann Card Anaesth 2020; 23:98-99. [PMID: 31929259 PMCID: PMC7034214 DOI: 10.4103/aca.aca_14_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Aorto-left ventricular tunnel (ALVT) is a rare congenital anomaly with extracardiac channel connecting ascending aorta to the ventricle. It presents early in life due to congestive cardiac failure. We present a case of ALVT with unusual morphology in an 11-year-old male child with palpitations and dyspnea. We also describe the transesophageal echocardiography evaluation of ALVT.
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Affiliation(s)
- Anitha Diwakar
- Department of Anesthesiology, Sri Sathya Sai Institute of Higher Medical Sciences, Bengaluru, Karnataka, India
| | - Kolli S Chalam
- Department of Anesthesiology, Sri Sathya Sai Institute of Higher Medical Sciences, Bengaluru, Karnataka, India
| | - Channabasavaraj S Hiremath
- Department of Cardiothoracic Surgery, Sri Sathya Sai Institute of Higher Medical Sciences, Bengaluru, Karnataka, India
| | - Krishna Manohar
- Department of Cardiothoracic Surgery, Sri Sathya Sai Institute of Higher Medical Sciences, Bengaluru, Karnataka, India
| | - P K Dash
- Department of Cardiology, Sri Sathya Sai Institute of Higher Medical Sciences, Bengaluru, Karnataka, India
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Baker CM, Burks JD, Briggs RG, Conner AK, Glenn CA, Manohar K, Milton CK, Sali G, McCoy TM, Battiste JD, O'Donoghue DL, Sughrue ME. A Connectomic Atlas of the Human Cerebrum-Chapter 8: The Posterior Cingulate Cortex, Medial Parietal Lobe, and Parieto-Occipital Sulcus. Oper Neurosurg (Hagerstown) 2019; 15:S350-S371. [PMID: 30260425 DOI: 10.1093/ons/opy262] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 09/18/2018] [Indexed: 11/13/2022] Open
Abstract
In this supplement, we build on work previously published under the Human Connectome Project. Specifically, we seek to show a comprehensive anatomic atlas of the human cerebrum demonstrating all 180 distinct regions comprising the cerebral cortex. The location, functional connectivity, and structural connectivity of these regions are outlined, and where possible a discussion is included of the functional significance of these areas. In part 8, we specifically address regions relevant to the posterior cingulate cortex, medial parietal lobe, and the parieto-occipital sulcus.
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Affiliation(s)
- Cordell M Baker
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Joshua D Burks
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Robert G Briggs
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Andrew K Conner
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Chad A Glenn
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Krishna Manohar
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Camille K Milton
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Goksel Sali
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Tressie M McCoy
- Department of Physical Therapy, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - James D Battiste
- Department of Neurology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Daniel L O'Donoghue
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Michael E Sughrue
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Neurosurgery, Prince of Wales Private Hospital, Sydney, Australia
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Ramanan S, Sasikumar N, Manohar K, Ramani SS, Kumar RS, Agarwal R, Subramanyam R, Cherian KM. Adult tetralogy repair: factors affecting early outcome in the current era. Asian Cardiovasc Thorac Ann 2019; 27:731-737. [PMID: 31594378 DOI: 10.1177/0218492319882870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background The benefits of surgical correction of adult tetralogy of Fallot are well known. The current recommendation is for total correction regardless of age. This study analyzed perioperative factors affecting early outcome after corrective surgery in adulthood in the current era. Methods This was a retrospective chart review of 40 consecutive patients over 18 years of age who underwent total correction of tetralogy of Fallot from September 2006 to June 2013. Patients with pulmonary atresia and absent pulmonary valve were excluded. The mean age at surgery was 26.60 ± 8.69 years (range 18–49 years). Results The mean intensive care unit stay was 3.30 ± 2.29 days (range 0.75–12 days) and hospital stay was 9.97 ± 3.39 days (range 7–22 days). Mortality was 5% (2/40). Multiple parameters indicating immediate postoperative outcomes and their relationships to selected pre-, intra-, and postoperative factors were analyzed. Multivariate analysis showed that postoperative right ventricular dysfunction had a significant influence on mortality ( p < 0.001) and hospital stay ( p = 0.01). Performing zero-balance ultrafiltration decreased the need for renal replacement therapy ( p = 0.034), duration of ventilation ( p = 0.009), incidence of low cardiac output ( p = 0.006), intensive care unit stay ( p = 0.01), and hospital stay ( p = 0.009). Conclusions Total correction of tetralogy of Fallot is a safe option for presentations as late as adulthood. The protective effect of zero-balance ultrafiltration on postoperative morbidity needs to be reassessed in larger studies.
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Affiliation(s)
- Sowmya Ramanan
- Department of Pediatric Cardiovascular Surgery, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
| | - Navaneetha Sasikumar
- Department of Pediatric Cardiology, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
| | - Krishna Manohar
- Department of Pediatric Cardiovascular Surgery, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
| | - Salla Sweta Ramani
- Department of Pediatric Cardiovascular Surgery, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
| | - RaghavanNair Suresh Kumar
- Department of Pediatric Cardiology, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
| | - Ravi Agarwal
- Department of Pediatric Cardiology, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
| | - Raghavan Subramanyam
- Department of Pediatric Cardiology, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
| | - Kotturathu Mammen Cherian
- Department of Pediatric Cardiovascular Surgery, Frontier Lifeline Hospital and Dr. K. M. Cherian Heart Foundation, Chennai, India
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Saxena A, Relan J, Agarwal R, Awasthy N, Azad S, Chakrabarty M, Dagar KS, Devagourou V, Dharan BS, Gupta SK, Iyer KS, Jayranganath M, Joshi R, Kannan BRJ, Katewa A, Kohli V, Kothari SS, Krishnamoorthy KM, Kulkarni S, Kumar RM, Kumar RK, Maheshwari S, Manohar K, Marwah A, Mishra S, Mohanty SR, Murthy KS, Rao KN, Suresh PV, Radhakrishnan S, Rajashekar P, Ramakrishnan S, Rao N, Rao SG, Chinnaswamy Reddy HM, Sharma R, Shivaprakash K, Subramanyan R, Kumar RS, Talwar S, Tomar M, Verma S, Vijaykumar R. Indian guidelines for indications and timing of intervention for common congenital heart diseases: Revised and updated consensus statement of the Working group on management of congenital heart diseases. Ann Pediatr Cardiol 2019; 12:254-286. [PMID: 31516283 PMCID: PMC6716301 DOI: 10.4103/apc.apc_32_19] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A number of guidelines are available for the management of congenital heart diseases (CHD) from infancy to adult life. However, these guidelines are for patients living in high-income countries. Separate guidelines, applicable to Indian children, are required when recommending an intervention for CHD, as often these patients present late in the course of the disease and may have coexisting morbidities and malnutrition. Guidelines emerged following expert deliberations at the National Consensus Meeting on Management of Congenital Heart Diseases in India, held on August 10 and 11, 2018, at the All India Institute of Medical Sciences. The meeting was supported by Children's HeartLink, a nongovernmental organization based in Minnesota, USA. The aim of the study was to frame evidence-based guidelines for (i) indications and optimal timing of intervention in common CHD; (ii) follow-up protocols for patients who have undergone cardiac surgery/catheter interventions for CHD; and (iii) indications for use of pacemakers in children. Evidence-based recommendations are provided for indications and timing of intervention in common CHD, including left-to-right shunts (atrial septal defect, ventricular septal defect, atrioventricular septal defect, patent ductus arteriosus, and others), obstructive lesions (pulmonary stenosis, aortic stenosis, and coarctation of aorta), and cyanotic CHD (tetralogy of Fallot, transposition of great arteries, univentricular hearts, total anomalous pulmonary venous connection, Ebstein's anomaly, and others). In addition, protocols for follow-up of postsurgical patients are also described, disease wise. Guidelines are also given on indications for implantation of permanent pacemakers in children.
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Affiliation(s)
- Anita Saxena
- Convener, All India Institute of Medical Sciences, New Delhi, India
| | - Jay Relan
- Writing Committee, All India Institute of Medical Sciences, New Delhi, India
| | | | | | - Sushil Azad
- Fortis Escorts Heart Institute, New Delhi, India
| | | | | | | | - Baiju S Dharan
- Sree Chitra Tirunal Institute for Medical sciences and Technology, Trivandrum, Kerala, India
| | | | | | - M Jayranganath
- Jayadeva Institute of Cardiovascular Sciences and Research, Bangalore, Karnataka, India
| | - Raja Joshi
- Sir Ganga Ram Hospital, New Delhi, India
| | - BRJ Kannan
- Vadamalayan Hospitals, Madurai, Tamil Nadu, India
| | - Ashish Katewa
- Sri Sathya Sai Sanjeevani Hospital, Raipur, Chhattisgarh, India
| | | | | | - KM Krishnamoorthy
- Sree Chitra Tirunal Institute for Medical sciences and Technology, Trivandrum, Kerala, India
| | - Snehal Kulkarni
- Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | - R Manoj Kumar
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | | | - Krishna Manohar
- Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
| | | | | | | | - K Samba Murthy
- Innova Children's Heart Hospital, Hyderabad, Telangana, India
| | | | - PV Suresh
- Narayana Hrudayalaya, Bangalore, Karnataka, India
| | | | | | - S Ramakrishnan
- All India Institute of Medical Sciences, New Delhi, India
| | - Nitin Rao
- Star Hospital, Hyderabad, Telangana, India
| | - Suresh G Rao
- Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | | | | | | | | | - R Suresh Kumar
- Believers International Heart Centre, Thiruvalla, Kerala, India
| | - Sachin Talwar
- All India Institute of Medical Sciences, New Delhi, India
| | | | - Sudeep Verma
- Krishna Institute of Medical Sciences, Secunderabad, Telangana, India
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Saxena A, Relan J, Agarwal R, Awasthy N, Azad S, Chakrabarty M, Dagar KS, Devagourou V, Dharan BS, Gupta SK, Iyer KS, Jayranganath M, Joshi R, Kannan BRJ, Katewa A, Kohli V, Kothari SS, Krishnamoorthy KM, Kulkarni S, Kumar RM, Kumar RK, Maheshwari S, Manohar K, Marwah A, Mishra S, Mohanty SR, Murthy KS, Koneti NR, Suresh PV, Radhakrishnan S, Rajashekar P, Ramakrishnan S, Rao N, Rao SG, Reddy CHM, Sharma R, Shivaprakasha K, Subramanyan R, Suresh Kumar R, Talwar S, Tomar M, Verma S, Raju V. Guidelines for the management of common congenital heart diseases in India: A consensus statement on indications and timing of intervention. Indian Heart J 2019; 71:207-223. [PMID: 31543193 PMCID: PMC6796629 DOI: 10.1016/j.ihj.2019.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 07/19/2019] [Indexed: 11/01/2022] Open
Abstract
INTRODUCTION A number of guidelines are available for management of congenital heart diseases from infancy to adult life. However, these guidelines are for patients living in high-income countries. Separate guidelines, applicable to Indian children, are required when recommending an intervention for congenital heart diseases, as often these patients present late in the course of the disease and may have co-existing morbidities and malnutrition. PROCESS Guidelines emerged following expert deliberations at the National Consensus Meeting on Management of Congenital Heart Diseases in India, held on the 10th and 11th of August, 2018 at the All India Institute of Medical Sciences. OBJECTIVES The aim of the study was to frame evidence-based guidelines for (i) indications and optimal timing of intervention in common congenital heart diseases and (ii) follow-up protocols for patients who have undergone cardiac surgery/catheter interventions for congenital heart diseases. RECOMMENDATIONS Evidence-based recommendations are provided for indications and timing of intervention in common congenital heart diseases, including left-to-right shunts, obstructive lesions, and cyanotic congenital heart diseases. In addition, protocols for follow-up of postsurgical patients are also described.
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Affiliation(s)
- Anita Saxena
- Convener, All India Institute of Medical Sciences, New Delhi, India.
| | - Jay Relan
- Writing Committee, All India Institute of Medical Sciences, New Delhi, India
| | | | | | - Sushil Azad
- Fortis Escorts Heart Institute, New Delhi, India
| | | | | | | | - Baiju S Dharan
- Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum, Kerala, India
| | | | | | - M Jayranganath
- Jayadeva Institute of Cardiovascular Sciences and Research, Bangalore, Karnataka, India
| | - Raja Joshi
- Sir Ganga Ram Hospital, New Delhi, India
| | - B R J Kannan
- Vadamalayan Hospitals, Madurai, Tamil Nadu, India
| | - Ashish Katewa
- Sri Sathya Sai Sanjeevani Hospital, Raipur, Chhattisgarh, India
| | | | | | - K M Krishnamoorthy
- Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum, Kerala, India
| | - Snehal Kulkarni
- Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | - Rohit Manoj Kumar
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | | | - Krishna Manohar
- Sri Sathya Sai Sanjeevani International Centre for Child Heart Care and Research, Palwal, Haryana, India
| | | | | | | | | | | | - P V Suresh
- Narayana Hrudayalaya, Bangalore, Karnataka, India
| | | | | | | | - Nitin Rao
- Star Hospital, Hyderabad, Telangana, India
| | - Suresh G Rao
- Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | | | | | | | | | - R Suresh Kumar
- Believers International Heart Centre, Thiruvalla, Kerala, India
| | - Sachin Talwar
- All India Institute of Medical Sciences, New Delhi, India
| | | | - Sudeep Verma
- Krishna Institute of Medical Sciences, Secunderabad, Telangana, India
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Amboli S, Ashtaputre YU, Kamath A, Hiremath CS, Manohar K. Azygos Vein to the Rescue of Warden Anastomosis in High Pulmonary Venous Drainage. World J Pediatr Congenit Heart Surg 2018; 11:NP210-NP212. [PMID: 30336739 DOI: 10.1177/2150135118769319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Partial anomalous pulmonary venous return is a congenital anomaly in which some of the pulmonary veins drain into the right atrium or one of its venous tributaries. Although excellent long-term results have been described for the classic two-patch technique repair in older patients, The Warden procedure has an important role in smaller and younger patients and those patients in whom the superior vena cava (SVC) may be small and the right-sided pulmonary veins may connect high, at or above the azygos vein. In addition to prevention of early and late sinus node dysfunction, the Warden procedure helps to avoid systemic or pulmonary venous obstruction if care is taken to ensure a tension-free Warden anastomosis. Patch extension or interposition of prosthetic grafts with no growth potential have been used in instances of high partial anomalous pulmonary venous connection (PAPVC) to SVC. We report three cases of high PAPVC to SVC using an innovative technique of incorporating the azygos vein into the Warden anastomosis for a tension-free suture line.
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Affiliation(s)
- Siddharth Amboli
- Department of Cardiothoracic and Vascular Surgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, India
| | - Yatindra U Ashtaputre
- Department of Cardiothoracic and Vascular Surgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, India
| | - Anuradha Kamath
- Department of Cardiothoracic and Vascular Surgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, India
| | - Channabasavaraj S Hiremath
- Department of Cardiothoracic and Vascular Surgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, India
| | - Krishna Manohar
- Department of Cardiothoracic and Vascular Surgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, India
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Manohar K, Mittal BR, Kashyap R, Bhattacharya A, Sharma SC. F-18 FDG PET/CT in restaging of a rare case of malignant cystosarcoma phylloides. Indian J Cancer 2016; 52:105. [PMID: 26837991 DOI: 10.4103/0019-509x.175603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
| | - B R Mittal
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Manohar K, Mittal BR, Agrawal K, Kashyap R, Bhattacharya A, Mandal AK. Response assessment to Sunitinib by F-18 Fluorodeoxyglucose PET/CT in a case of venous tumor thrombosis from renal cell carcinoma. Indian J Cancer 2014; 51:390. [PMID: 25494158 DOI: 10.4103/0019-509x.146770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
| | - B R Mittal
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Saileela R, Shanthi C, Manohar K, Subramanyan R, Cherian K. Myocardial ischemia following arterial switch operation: An uncommon etiology. Ann Pediatr Cardiol 2012; 5:194-6. [PMID: 23129913 PMCID: PMC3487212 DOI: 10.4103/0974-2069.99626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Myocardial ischemia following arterial switch operation (ASO) usually occurs due to coronary ostial narrowing that might result from technical failure in translocation of the coronary arteries to the neoaorta. We present an unusual case report of neonatal myocardial ischemia caused by coronary steal secondary to aortopulmonary collaterals, following ASO in transposition of great arteries.
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Affiliation(s)
- R Saileela
- Department of Pediatric Cardiology and Cardiothoracic Surgery, Frontier Lifeline and Dr. K. M. Cherian Heart Foundation, Chennai, India
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Sathe Y, Chidambaram S, Manohar K, Cherian KM. Staged Kawashima operation with cavopulmonary connection. J Thorac Cardiovasc Surg 2012; 144:267-8. [PMID: 22326426 DOI: 10.1016/j.jtcvs.2012.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 12/17/2011] [Accepted: 01/04/2012] [Indexed: 11/25/2022]
Affiliation(s)
- Yogesh Sathe
- Department of Pediatric Cardiology and Cardiac Surgery, Frontier Lifeline and Dr K M Cherian Heart Foundation, Chennai, India.
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Philip S, Varghese M, Manohar K, Cherian KM. Absent pulmonary valve syndrome: prenatal cardiac ultrasound diagnosis with autopsy correlation. European Journal of Echocardiography 2011; 12:E44. [DOI: 10.1093/ejechocard/jer155] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Manohar K, Suneetha PV, Sukriti, Pati NT, Gupta AC, Hissar S, Sakhuja P, Sarin SK. Association of IL-18 promoter polymorphism with liver disease severity in HCV-infected patients. Hepatol Int 2009; 3:371-7. [PMID: 19669363 DOI: 10.1007/s12072-009-9127-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Accepted: 02/24/2009] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Interleukin (IL)-18 plays an important dual role in Th1 polarization and viral clearance, as well as in the development of liver fibrosis. Single-nucleotide promoter polymorphisms influence the transcription of IL-18 mRNA. Promoter polymorphisms are linked to delayed virus clearance and disease susceptibility in many diseases. However, there is no information about their role in hepatitis C virus (HCV) infection. AIM To investigate the association between -607 or -137 polymorphism with susceptibility and severity of HCV infection. PATIENTS AND METHODS Two hundred and four serologically proven patients with chronic HCV infection and 350 matched healthy controls were included in this study. Patients were segregated in 2 groups: group A with mild liver disease and group B with severe liver disease on the basis of histological activity index (HAI </=5 or >5) and hepatic fibrosis score (</=2 or >2). IL-18 promoter genotyping was performed with sequence-specific primers. RESULTS There was no significant difference in the frequencies of -607 and -137 allelic distribution in patients and controls. The -607 A/A allele was more common in group A patients with mild liver disease than in patients with severe liver disease on the basis of HAI (38.6% vs. 21%, P = 0.05; odds ratio [OR] = 0.424, confidence interval [CI] = 0.233-0.773; R (2) = 0.631) and stage of fibrosis (38.7% vs. 16.7%, P = 0.008; OR = 0282, CI = 0.134-0.596; R (2) = 0.434). CONCLUSIONS IL-18 promoter polymorphism at -607 position with A/A allele is a potential protective marker, as it is associated with milder liver disease in patients with chronic HCV infection.
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Affiliation(s)
- K Manohar
- Department of Gastroenterology, G.B. Pant Hospital, New Delhi, India
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Igathinathane C, Chennakesavulu B, Manohar K, Womac A, Pordesimo L. Photovoltaic Leaf Area Meter Development and Testing. International Journal of Food Properties 2008. [DOI: 10.1080/10942910600954739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Rao AM, Pathak S, Theodore S, Misra M, Manohar K, Shyam Krishnan KG, Neelakandhan KS, Jayakumar K. Anomalous left coronary artery from pulmonary artery in adults: Are there any contraindications for a two coronary system? Indian J Thorac Cardiovasc Surg 2006. [DOI: 10.1007/s12055-006-0514-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Kolandaivelu G, Soundararajan P, Radhakrishnan S, Manohar K. Osteosarcoma in an infant. Indian Pediatr 1986; 23:141-3. [PMID: 3458671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Kolandaivelu G, Lewin K, Radhakrishnan K, Seeniraj K, Manohar K. Gastrin secreting tumor of the stomach. Indian Pediatr 1985; 22:392-3. [PMID: 3833767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Kolandaivelu G, Manohar K, Radhakrishnan S. Melanotic neuro-ectodermal tumor of infancy. Indian Pediatr 1983; 20:941-2. [PMID: 6327526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Manohar K. Non-Specific Ulcers of the Alimentary Tract. Ind Med Gaz 1941; 76:265-268. [PMID: 29013563 PMCID: PMC5185045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- K. Manohar
- Pathology Department, Seth G. S. Medical College, Bombay
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